[ixp1200] Using PETH drivers with L3fwd16 on ENP-2505

[Chong Poh Kit]

Hi,

Thanks for replying. Unfortunately, I'm still getting the Bad descriptor problem.

I've tried both removing and adding RFC1812 from build>settings>assembler>preprocessor definitions in the workbench and also in the 
Makefile of /opt/ixasdk/examples/peth and /opt/ixasdk/examples/rtm but to no effect.

Does anyone know if the peth driver and rtm application in SDK 2.01 is suitable for the ENP-2505 (Bridalveil) board or do I have to make 
any changes to them?

Thanks.

Regards,

P.K. Chong
Multimedia University, Malaysia

On Wed, 11 Dec 2002 20:34:41 +0200, Arthur Berkovitch wrote:
>pay attention to descriptor format: a PETH driver is built with RFC1812 uses a newer descriptor format but the reference design use the 
older packet
>descriptor. You need to remove -DRFC1812 from the peth/Makefile to set the PETH to older descriptor format.
>
>...
>MODFLAGS = -D__KERNEL__ -DMODULE -DIOSTYLE=HARDWARE -DLINUX -DOS=UNIX \
>-D__linux__ -DSPECTACLE_ISLAND -DRFC1812
>...
>
>-----Original Message-----
>From: Chong Poh Kit [mailto:thesoothsayer at pd.jaring.my]
>Sent: Wednesday, December 11, 2002 10:52 AM
>To: ixp1200 at CS.Princeton.EDU
>Subject: [ixp1200] Using PETH drivers with L3fwd16 on ENP-2505
>
>
>Hi all,
>
>I was wondering if anyone could tell me how to get the ENP-2505 to forward
>packets by using the peth driver and hardware debugging on the workbench and
>not through the MicroACE framework.
>
>After inserting the ue.o, octmac.o, giga_drv.o modules and running rs_udebug
>and rtmapp, I started a hardware debug session using the L3fwd16 project.
>I then loaded the peth driver and initialised the peth devices similar to
>the example in the "load" file.
>
>However, when I try to ping a computer connected to the ENP-2505 ethernet
>port, I get this message:
>Bad descriptor 0, dropping outgoing packet
>pethFreeDescriptor: Bad descriptor 0
>
>I've tried defining RFC1812 in the code and also in build>settings for the
>project but the same problem occurs.
>
>Any help or pointers would be greatly appreciated.
>
>Thanks.
>
>Regards,
>
>P.K. Chong
>Multimedia University, Malaysia